Salsolinol-Containing Exerts Antiviral Activity Against Hepatitis B Virus.

Several natural products have been shown to display antiviral activity against the hepatitis B virus (HBV), among a number of other viruses. In a previous study, the hydro-alcoholic extracts (n = 66) of 31 species from the Venezuelan Amazonian rain forest were tested on the hepatoma cell line HepG2.2.

Modified Melody Valve Surgical Implantation in Atrioventricular Position in Four Children Under Two Years of Age.

Mitral and tricuspid valve replacement options have traditionally been limited to mechanical valves, bioprostheses, and the mitral Ross procedure. In recent years, the Melody valve (Medtronic, Minneapolis, MN) has emerged as a viable alternative for infants and young children. We present four patients under two years of age who underwent surgical implantation of a modified Melody valve 22 mm in the atrioventricular position.

Reassignment of crispatene, isolation and chemical characterization of stachydrine, isolated from the marine mollusk .

The molluscan genus Elysia Risso, 1818 (Sacoglossa) is composed of shell-less herbivore sea slugs. From these marine organisms, polyketides such as polypropynates have been isolated and showed cytotoxic, antibiotic, and antifungal, and antiviral properties. In this work, we reported the isolation, and structure elucidation of two compounds isolated from marine mollusk Both compounds isolated, crispatene (1) and stachydrine (2), were purified by HPLC.

Seasonal sebaceous patch in the nectar-feeding bats Leptonycteris curasoae and L. yerbabuenae (Phyllostomidae: Glossophaginae): phenological, histological, and preliminary chemical characterization.

Many species of bats secrete a wide variety of substances, frequently associated with olfactory communication. We characterized a seasonal phenomenon of dorsal sebaceous secretion in the Curaçaoan long-nosed bat, Leptonycteris curasoae, in Venezuela, and the lesser long-nosed bat, Leptonycteris yerbabuenae, in Mexico. The phenology of the sebaceous patch was determined, a histological analysis of the affected area was conducted using specimens of L.